My ordered list items is not display in browser. I have error. Thanks you.

Question

Ordered list items is not display.
https://code.sololearn.com/W5kJG0WZc0t4/?ref=app

Answer 1

You didn't add the olist to the body of the document prior to attempting to access it in the DOM.
Add this line between 22 and 23.

document.body.appendChild(olist);